Combined mounting ring and thumbrest for a musical instrument



FIG. 1 is a front elevation view of a combined mounting ring and thumbrest for a musical instrument showing my new design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a side elevation as seen from the left of FIG. 1;

FIG. 4 is a side elevation as seen from the right of FIG. 1;

FIG. 5 is an elevation as seen from the top of FIG. 1; and

FIG. 6 is an elevation as seen from the bottom of FIG. 1.

The broken lines representing the fragmentary portion of the guitar are for illustrative purposes only. 

The ornamental design for a combined mounting ring and thumbrest for a musical instrument, as shown and described. 